//导包
import java.util.Scanner;

public class ScannerDemo01 {
    //主入口
    public static void main(String[] args) {
        //创建对象
        Scanner sc = new Scanner(System.in);
        System.out.print("请输入整数：");
        //接收数据
        int a = sc.nextInt();

        System.out.println(a);
    }
}
